Answer:
Barry's kart is faster as he goes 21 Mph while Alan only goes 19.89 Mph.
Step-by-step explanation:
First to get this answer we need to convert feet per minute to miles per hour. So we multiple 1750 feet per minute by 60 to get a hour. This gets up 105000 total feet in a hour. Now we need to divide this by 5280, which is how long a mile is, to get 19.89 miles which is how many miles he travels in a hour making him travel 19.89 mph which is less than 21 making Barry faster.
Answer:
7
Step-by-step explanation:
I don't completely understand what you were asking, but if you were counting by 7's, 91 would be after 84 instead of just 90.
Answer:
x = 23
Step-by-step explanation:
CU + UB = CB
Since U is the midpoint that means CU = UB = 18
18+ 18 = 2x-10
36 = 2x-10
Add 10 to each side
36+10 = 2x
46 =2x
Divide by 2
23 = x
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Call the first even number '2n'
Thus, the next would be 2n + 2
And the next would be 2n + 4
Form an equation:
2n + 2n + 2 + 2n + 4 = 36
Simplify:
6n + 6 = 36
Subtract 6 from both sides:
6n = 30
Divide both sides by 6:
n = 5
2(5) = 10
The smallest number is 10
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Answer: no real solutions
Step-by-step explanation:
8n^2-7n+7=0
a=8, b=-7, c=7
b^2-4ac=(-7)^2-4*8*7=49-224=-175
-175<0
no real solutions
